SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Net Investment in Direct Financing Lease (Details) - Skilled Nursing Transitional Care Facilities $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2018 USD ($) Property	Sep. 30, 2018 USD ($) Property
Lessor, Lease, Description [Line Items]
Net investment in direct financing lease	$ 23.3	$ 23.3
Number of properties in direct financing lease \| Property	1	1
Lease income	$ 0.6	$ 1.9
Minimum lease payments contractually due under direct financing leases
Due for the remainder of 2018	0.5	0.5
Due in 2019	2.2	2.2
Due in 2020	2.3	2.3
Due in 2021	$ 2.1	$ 2.1

Lessor, Direct Financing Lease, Number of Properties

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- Definition

Amount of minimum lease payments to be received by the lessor for capital leases in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 30
-Section 50
-Paragraph 4
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=84165051&loc=d3e45377-112738

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Amount of minimum lease payments to be received by the lessor for capital leases in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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Amount of minimum lease payments to be received by the lessor for capital leases in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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Amount of minimum lease payments to be received by the lessor for capital leases in the remainder of the fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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- Definition

Revenue realized in the period on direct financing leases.

+ References

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- Definition

The net investment in direct financing leases as of the balance sheet date consisting of: (a) minimum lease payments due on direct financing leases, (b) unguaranteed residual value, and (c) any unamortized initial direct costs; less: (i) executory costs, (ii) unearned income, and (iii) the accumulated allowance for uncollectible minimum lease payments.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 30
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=84165051&loc=d3e45377-112738

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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